linux/arch/arm/mach-ux500/include/mach/uncompress.h
Arnd Bergmann 20ef52a885 ARM: ux500: use __iomem pointers for MMIO
In the earlier sweeping changes, the ux500 uncompress.h file was missed
because other problems were hiding this one.

Without this patch, building u8500_defconfig results in:

In file included from arch/arm/boot/compressed/misc.c:33:0:
arch/arm/mach-ux500/include/mach/uncompress.h: In function 'putc':
arch/arm/mach-ux500/include/mach/uncompress.h:32:2: warning: passing argument 1 of '__raw_readb' makes pointer from integer without a cast [enabled by default]
arch/arm/include/asm/io.h:95:89: note: expected 'const volatile void *' but argument is of type 'u32'

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Linus Walleij <linus.walleij@linaro.org>
2012-09-28 22:03:41 +02:00

60 lines
1.7 KiB
C

/*
* Copyright (C) 2009 ST-Ericsson
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __ASM_ARCH_UNCOMPRESS_H
#define __ASM_ARCH_UNCOMPRESS_H
#include <asm/setup.h>
#include <asm/mach-types.h>
#include <linux/io.h>
#include <linux/amba/serial.h>
#include <mach/hardware.h>
void __iomem *ux500_uart_base;
static void putc(const char c)
{
/* Do nothing if the UART is not enabled. */
if (!(__raw_readb(ux500_uart_base + UART011_CR) & 0x1))
return;
if (c == '\n')
putc('\r');
while (__raw_readb(ux500_uart_base + UART01x_FR) & (1 << 5))
barrier();
__raw_writeb(c, ux500_uart_base + UART01x_DR);
}
static void flush(void)
{
if (!(__raw_readb(ux500_uart_base + UART011_CR) & 0x1))
return;
while (__raw_readb(ux500_uart_base + UART01x_FR) & (1 << 3))
barrier();
}
static inline void arch_decomp_setup(void)
{
/* Use machine_is_foo() macro if you need to switch base someday */
ux500_uart_base = (void __iomem *)U8500_UART2_BASE;
}
#define arch_decomp_wdog() /* nothing to do here */
#endif /* __ASM_ARCH_UNCOMPRESS_H */